Publications

frequent house invasion of trypanosoma cruzi-infected triatomines in a suburban area of brazil.	the demographic transition of populations from rural areas to large urban centers often results in a disordered occupation of forest remnants and increased economic pressure to develop high-income buildings in these areas. ecological and socioeconomic factors associated with these urban transitions create conditions for the potential transmission of infectious diseases, which was demonstrated for chagas disease.	2015	25909509
distribution of constitutive heterochromatin in species of triatomines with fragmentation of sex chromosomes x.	cytogenetic analyses of triatomines are considered to be important taxonomic tools. thus, we analyzed the pattern of constitutive heterochromatin in 7 species of triatomine with fragmentation of the sex chromosome x, focusing on the cytotaxonomy of these triatomines. the species analyzed included triatoma vitticeps, triatoma melanocephala, triatoma tibiamaculata, triatoma protracta, meccus pallidipennis, panstrongylus megistus, and panstrongylus lignarius. the seminiferous tubules of the adult m ...	2014	25501239
multiple mitochondrial genes of some sylvatic brazilian triatoma: non-monophyly of the t. brasiliensis subcomplex and the need for a generic revision in the triatomini.	multiple fragments of mitochondrial dna genes (cytochrome b, cytochrome oxidase i, and 16s rdna) were used to evaluate the phylogenetic relationships among triatoma melanocephala, triatoma tibiamaculata, triatoma vitticeps, and other members of triatoma brasiliensis subcomplex under a bayesian framework and maximum parsimony criterion. with the addition of new sequences of t. tibiamaculata and t. vitticeps, triatoma juazeirensis, triatoma melanica and the newly sequenced t. melanocephala, the th ...	2014	24508245
biological, biochemical and molecular features of trypanosoma cruzi strains isolated from patients infected through oral transmission during a 2005 outbreak in the state of santa catarina, brazil: its correspondence with the new t. cruzi taxonomy consensus (2009).	we examined strains of trypanosoma cruzi isolated from patients with acute chagas disease that had been acquired by oral transmission in the state of santa catarina, brazil (2005) and two isolates that had been obtained from a marsupial (didelphis aurita) and a vector (triatoma tibiamaculata). these strains were characterised through their biological behaviour and isoenzymic profiles and genotyped according to the new taxonomy consensus (2009) based on the discrete typing unities, that is, t. cr ...	2011	22241116
selection of tcii trypanosoma cruzi population following macrophage infection.	chagas disease is caused by the protozoan parasite trypanosoma cruzi, which exhibits a high genetic variability. tci, tcii, or mixed tci/tcii strains may be found during acute human infection while mainly tcii parasites are present at the chronic stage of disease. in a previously studied chagas disease outbreak, we identified mixed tci/tcii strains in the vector triatoma tibiamaculata and only tcii strains in infected humans, indicating that t. cruzi populations may be selected within the human ...	2011	21742848
spatial distribution of triatomines (reduviidae: triatominae) in urban areas of the city of salvador, bahia, brazil.	environmental changes have a strong influence on the emergence and/or reemergence of infectious diseases. the city of salvador, brazil -currently the focus of a housing boom linked to massive deforestation- is an example in point as the destruction of the remaining areas of the atlantic forest around the city has led to an increased risk for chagas disease. human domiciles have been invaded by the triatomine vectors of trypansoma cruzi, the flagellate protozoan causing chagas disease, a problem ...	2011	21590670
characterization of trypanosoma cruzi isolated from humans, vectors, and animal reservoirs following an outbreak of acute human chagas disease in santa catarina state, brazil.	during march 2005, 24 cases of acute human chagas disease were detected in santa catarina state, southern brazil, all of them related to the ingestion of trypanosoma cruzi-contaminated sugar cane juice. following field studies allowed the isolation of 13 t. cruzi strains from humans, opossums (didelphis aurita and didelphis albiventris), and vectors (triatoma tibiamaculata). the isolated strains were characterized by multilocus enzyme electrophoresis (mlee) and analysis of the spliced-leader and ...	2008	17889480
[triatoma tibiamaculata (pinto, 1926): life table for nymphs, duration of adult forms and oviposition of females].	under laboratory conditions, the authors analyzed the survival rate of nymphs, the minimum and maximum duration of each stage, the length of life of the winged forms and oviposition of the females. two groups of 100 eggs each were monitored. in batch a, the specimens were reared in a single glass receptacle. in batch b, the specimens were kept apart, one by one, and when they reached the winged stage, they formed twenty couples, which made it possible to watch over the oviposition of the females ...	2007	17876468
localization of rdna sites in holocentric chromosomes of three species of triatomines (heteroptera, triatominae).	chromatin organization in the holocentric chromosomes of three triatomines species was cytologically studied by fluorescent in situ hybridization with a 45s rdna probe of drosophila melanogaster to localize ribosomal genes. in triatoma tibiamaculata, metaphases i showed telomeric highlights in a single, larger bivalent. in t. protacta, hybridization was detected in one of the telomeres of an autosomal chromosome. in t. platensis, there were highlights in a single, smaller chromosome (x chromosom ...	2005	16475115
[chagas' disease in the southern coastal region of brazil].	to analyze serological data collected in two different periods, from the late 1960's to 1983, when these data was first added to the available information about vector triatomines found in the state of são paulo, and from 1984 to 1999, a period when serology was used to describe endemic chagas' disease in the state.	2003	12488920
[the chagas disease control program of the são paulo state: the contribution of serology to the epidemiological investigation of triatomine-infested domiciliary units during the 1990s].	the chagas disease control program in são paulo state, brazil, now in the entomological surveillance phase, includes a serological examination of individuals residing in domiciliary units infested with vector triatomines infected with trypanosoma cruzi. from 1990 to 1999, this action included area in which triatomine searches were conducted either as a routine procedure, according to their levels of intra- or peridomiciliary infestation, or at the request of local residents. among residents of t ...	2002	12488897
sylvatic vectors invading houses and the risk of emergence of cases of chagas disease in salvador, state of bahia, northeast brazil.	during the last twenty years, several adults of triatoma tibiamaculata infected with trypanosoma cruzi have been spontaneously caught by inhabitants, inside their houses in the new habitational district of pitua¿u of salvador, bahia. in this communication the authors call attention to the necessity of studies about the possibility of occurrence of new human cases of chagas disease, to clarify the obscure origin of some positive blood donors in salvador.	2000	10998208
the ecotopes and evolution of triatomine bugs (triatominae) and their associated trypanosomes.	triatomine bug species such as microtriatoma trinidadensis, eratyrus mucronatus, belminus herreri, panstrongylus lignarius, and triatoma tibiamaculata are exquisitely adapted to specialist niches. this suggests a long evolutionary history, as well as the recent dramatic spread a few eclectic, domiciliated triatomine species. virtually all species of the genus rhodnius are primarily associated with palms. the genus panstrongylus is predominantly associated with burrows and tree cavities and the g ...	2000	10904415
[1st finding of triatoma tibiamaculata pinto, 1926 naturally infected by trypanosoma cruzi in ubatuba, são paulo, brazil].		1976	828291